CN115218113A - Layered air storage device and gravity compressed air energy storage system - Google Patents
Layered air storage device and gravity compressed air energy storage system Download PDFInfo
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- CN115218113A CN115218113A CN202210795444.3A CN202210795444A CN115218113A CN 115218113 A CN115218113 A CN 115218113A CN 202210795444 A CN202210795444 A CN 202210795444A CN 115218113 A CN115218113 A CN 115218113A
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- 230000005484 gravity Effects 0.000 title claims abstract description 122
- 238000004146 energy storage Methods 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 15
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- 230000001012 protector Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
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- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0176—Shape variable
- F17C2201/018—Shape variable with bladders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention provides a layered gas storage device and a gravity compressed air energy storage system, wherein the total volume of gas in the gas storage device is effectively increased through the arrangement of a plurality of layers of gas storage bags; and the hose coil is arranged, so that the length of the hose can be properly increased to improve the running height of each stage of supporting assembly, the requirement on the engineering gas storage volume in a wider range is met, and the problems of high performance requirement of a sealing film and limited gas storage volume in the traditional arrangement mode are solved. In addition, through injecting compressed gas into each layer of gas storage bag, the external pressure born by each layer of gas storage bag is gradually reduced, so that the internal and external pressure difference of each layer of gas storage bag is reduced layer by layer, and the stress of each layer of gas storage bag is integrally reduced, thereby prolonging the service life of each level of sealing film. In addition, only the uppermost air storage bag directly contacts with the gravity assembly in the gravity compressed air energy storage system, and only the uppermost air storage bag jacks up the gravity assembly for a small distance, so that the risk of inclination of the posture of the gravity assembly is reduced.
Description
Technical Field
The invention relates to the technical field of electric energy storage, in particular to a layered gas storage device and a gravity compressed air energy storage system.
Background
The gravity compressed air energy storage system stores redundant electric energy through compressed air, and releases high-pressure air to do work through the expansion machine to generate power when needed. When storing energy, the compressed air energy storage system consumes electric energy to compress and store the air in the air storage chamber; when releasing energy, high-pressure air is released from the air storage chamber, enters the combustion chamber, is heated by fuel combustion and then is driven to generate power, or can be used for heating air by recovering compression heat without fuel combustion heating. The compressed air energy storage system can be used for building a large power station with more than 100MW, is only second to a pumped storage power station, and has the advantages of long energy storage period, small unit energy storage investment, long service life and high efficiency. The gravity compressed air energy storage technology is provided by combining the advantages of high energy density of compressed air energy storage and flexible arrangement of gravity energy storage, and further improving the energy storage technology, and the energy storage technology is firstly provided with a safe and economic counterweight structure. Traditional gravity briquetting is that a plurality of briquetting are assembled according to certain array orientation and form, and a plurality of briquetting have the danger of slope or coming off in the motion process, and the motion focus changes along with the motion easily.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention aims to provide a layered air storage device and a gravity compressed air energy storage system, wherein the total volume of gas in the air storage device is effectively increased through the arrangement of a plurality of layers of air storage bags; and the hose coil is arranged, so that the length of the hose can be properly increased to improve the running height of each stage of supporting assembly, the requirement on the engineering gas storage volume in a wider range is met, and the problems of high performance requirement of the air bag and limited gas storage volume in the traditional arrangement mode are solved. In addition, through injecting compressed gas into each layer of gas storage bag, the external pressure born by each layer of gas storage bag is gradually reduced, so that the internal and external pressure difference of each layer of gas storage bag is reduced layer by layer, and the stress of each layer of gas storage bag is integrally reduced, thereby prolonging the service life of each level of sealing film. In addition, only the uppermost air storage bag directly contacts with the gravity assembly in the gravity compressed air energy storage system, and only the uppermost air storage bag jacks up the gravity assembly for a small distance, so that the risk of inclination of the posture of the gravity assembly is reduced.
In order to achieve the above object, the present invention provides a layered gas storage device, which comprises:
an air storage chamber; the air storage chambers are internally provided with a plurality of air storage bags in sequence in the vertical direction; supporting components are arranged between every two adjacent air storage bags; the supporting component is used for separating the air storage bags and supporting the air storage bags arranged on the upper layer;
a guide wheel device; the air storage chamber is arranged on the inner wall of the air storage chamber and is positioned on the peripheral side of the support component; the guide wheel device comprises a guide rail and a guide wheel; so that the guide wheel moves up and down along the guide rail when the support component moves up and down;
an air intake and exhaust assembly; the air storage device comprises a coil pipe fitting arranged in the air storage chamber, a plurality of circles of hoses which are wound on the coil pipe fitting and the output ends of which are communicated with the air storage bag, and an auxiliary pipeline valve assembly; so that air is introduced into and discharged from the air reservoir through the hose.
In some embodiments, the support assembly includes a support plate and a baffle disposed on and circumferentially around the support plate; the air storage bag is positioned in an accommodating space enclosed by the support plate and the baffle; the guide wheel is arranged on the outer wall of the baffle and is in sliding connection with the guide rail arranged on the inner wall of the air storage chamber.
In some embodiments, the layered gas storage device further comprises a protection member; the protector comprises a plurality of cushions; the cushion pads are respectively arranged above the supporting plate and on the inner side of the baffle plate so as to protect the air storage bag in an inflated state.
In some embodiments, the accessory line valve assembly includes a main pipe and a plurality of branch pipes in communication with the main pipe; the branch pipes correspond to the air storage bags respectively and are connected with the hoses on the air storage bags.
In some embodiments, the branch conduit is connected to the hose by a first connection; the first connecting piece is arranged on the inner wall of the air storage chamber and comprises a coil body and a sealing gasket arranged on one side of the coil body; one end of the coil body is fixedly arranged on the hose, and the other end of the coil body is in threaded connection with the branch pipeline; the sealing gasket is used for sealing the joint of the coil body and the branch pipeline.
In some embodiments, a layered air storage gravity compressed air energy storage system is provided, comprising
The gas storage device comprises a vertical shaft, wherein a gravity component is movably inserted into the vertical shaft, a gap is formed between the outer wall of the gravity component and the inner wall of the vertical shaft, the bottom of the gravity component is provided with the gas storage device as claimed in any one of claims 1 to 5, and the gas storage chamber is positioned on the inner side of the vertical shaft.
In some embodiments, the gravity assembly comprises a gravity block set and a pressure bearing assembly; the gravity block group is arranged at the top of the pressure bearing assembly; the bottom of the pressure bearing assembly extends into the shaft, and the outer wall of the pressure bearing assembly is connected with the sealing film; the top of the pressure bearing assembly is positioned on the ground at the top of the vertical shaft; the gravity block group comprises a plurality of gravity pressing blocks which are arranged in a stacked mode in the vertical direction, and the gravity centers of the gravity pressing blocks are kept in the same vertical direction.
In some embodiments, the pressure bearing assembly comprises a pressure bearing cartridge and a pressure bearing base; the bottom of the pressure bearing cylinder extends into the shaft, and the top of the pressure bearing cylinder is provided with a pressure bearing base; the gravity block group is positioned above the pressure-bearing base, so that the pressure-bearing cylinder is supported on the ground at the top of the vertical shaft through the pressure-bearing base when moving downwards to the lowest limit position.
In some embodiments, the energy storage system includes a guide device including a guide slot and a roller; the guide grooves are distributed on the peripheral side of the gravity component and are arranged on the inner wall of the vertical shaft or the outer part of the vertical shaft; the roller is matched with the guide groove and is connected with the groove bottom of the guide groove, so that the roller moves up and down along the groove bottom of the guide groove when the gravity assembly moves up and down.
In some embodiments, the ground outside the top end of the shaft is provided with a plurality of tower structures, and the tower structures are distributed on the periphery of the shaft; the guide grooves are respectively arranged on the tower structures.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a layered gas storage device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a layered air storage gravity compressed air energy storage system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a coil component according to the prior art according to an embodiment of the present invention;
in the figure, 1, gravity briquetting; 2. a tower structure; 3. a guide device; 4. a pressure-bearing base; 5. a guide wheel device; 6. a cushion pad; 7. a soil layer; 8. an air storage chamber; 9. a magnetic member; 10. a pressure-bearing cylinder; 11. a gas storage bag; 12. a shaft; 13. a steel lining; 14. a coil member; 15. a support plate; 16. a baffle plate; 17. a hose; 18. a main pipeline; 19. and (4) branch pipelines.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic view of a layered gas storage device according to an embodiment of the present invention, which includes a gas storage chamber 8, a guide wheel device 5, and an intake and exhaust assembly; the gas storage chamber 8 that can know can be for the tubular structure who is enclosed by the steel sheet, and inside is hollow structure, wherein inside gas storage chamber 8, by the same distance setting up a plurality of gas storage bags 11 of lower to last interval in proper order, and all set up supporting component between the adjacent gas storage bag 11 in vertical direction. As will be understood by those skilled in the art, the first air storage bag, the supporting component, the second air storage bag, the supporting component, the third air storage bag, the supporting component, and the nth air storage bag are arranged in sequence from bottom to top, wherein the air storage bag 11 is of a deformable structure made of rubber. As shown in fig. 1, the layered air storage device in this embodiment includes three air storage bags 11, and those skilled in the art can flexibly increase the number of the air storage bags 11 according to the needs.
In this embodiment, the guide wheel device 5 includes a guide rail disposed on the inner wall of the air reservoir 8 and located on the peripheral side of the support member, and a guide wheel cooperating with the guide groove such that the guide wheel moves up and down along the bottom of the guide rail when the support member moves up and down. The specific guide rails are arranged in a plurality of numbers, the guide rails are distributed on the inner wall of the air storage chamber 8 and located on the periphery side of the supporting component, the guide wheels are arranged in a plurality of numbers, and the guide wheels are respectively installed on the periphery side of the supporting component through rotating shafts.
Wherein the air intake and exhaust assembly comprises a coil pipe member 14, a hose 17 and an auxiliary pipeline valve assembly; the coil member 14 is a circular disk which can coil the flexible tube 17 on its outer periphery by rotation, and the coil member 14 in this embodiment is a structure which can switch the rotation direction and realize coiling or elongation of the flexible tube 17, for example, the coiling of the flexible tube 17 is realized by clockwise or counterclockwise rotation of the rotary disk on the coil member 14, and the elongation of the flexible tube 17 is realized by reverse rotation, as shown in fig. 3. Illustratively, a spring ruler strip is arranged in the coil pipe part 14, when the hose 17 needs to be coiled, the spring ruler strip can automatically contract, and the hose 17 also contracts under the action of the spring force of the spring ruler strip; when the hose 17 is pulled outwards, the hose 17 is pulled out for a certain distance, the hose 17 can be contracted to a proper length by the spring ruler strip contraction disc after use, and the disc pipe is a common and commercially available component, which is not described again.
It can be understood that the hose 17 can be filled with air, the hose is wound on the coil member 14 for a plurality of turns, the output end of the hose is communicated with the air storage bag 11, the compressed air is input into the hose 17 through the accessory pipeline valve assembly and finally is input into the air storage bag 11, wherein the interface of the connection between the air storage bag 11 and the hose 17 is a metal structure with threads to fix the end of the hose 17. In the embodiment, the total volume of gas in the energy storage system is effectively increased by arranging the plurality of layers of gas storage bags 11 within the allowable strength and deformation range of the gas storage bags 11; and the length of the hose 17 can be properly increased through the coiling of the hose 17 so as to improve the running height of each level of supporting component, thereby meeting the requirement of the engineering gas storage volume in a wider range and solving the problems of high performance requirement of a sealing film and limited gas storage volume in the traditional arrangement form. In addition, by injecting compressed gas into each layer of gas storage bag 11, the external pressure born by each layer of gas storage bag 11 is gradually reduced, so that the internal and external pressure difference of each layer of gas storage bag 11 is reduced layer by layer, the stress of each layer of gas storage bag 11 is reduced integrally, and the service life of each level of sealing film is prolonged.
In some embodiments, the layered gas storage device further comprises a protection member; the protector comprises a plurality of cushions 6; a plurality of cushion pads 6 are respectively disposed above the support plate 15 and inside the baffle 16 to protect the air reservoir 11 in an inflated state.
In some embodiments, the satellite line valve assembly includes a main conduit 18 and a plurality of branch conduits 19 in communication with the main conduit 18; the branch pipes 19 correspond to the air reservoirs 11 and are connected to the hoses 17 of the air reservoirs 11.
Specifically, as shown in fig. 1, the main pipe 18 is a through pipe having two-way functions of filling gas into the gas storage chamber 8 and discharging gas, and is made of a steel pipe, the output end of the main pipe 18 is provided with a plurality of branch pipes 19, the material of the branch pipes is consistent with that of the main pipe 18, the number of the branch pipes 19 is the same as that of the gas storage bags 11 in the layered gas storage device, the output end of each branch pipe 19 is connected with a hose 17, the hose 17 is wound on the coil pipe 14 for a plurality of turns, and the output end of the hose is communicated with the corresponding gas storage bag 11.
As can be known, the branch pipeline 19 is a pipeline structure which keeps consistent with the section material of the main pipeline 18 and is convenient to be connected with the main pipeline 18; the branch pipe 19 penetrates through the air storage chamber 8 and is connected with the hose 17 through a first connecting piece, wherein the first connecting piece is arranged on the inner wall of the air storage chamber 8 and comprises a spiral ring body and a sealing gasket arranged on one side of the spiral ring body; wherein, the input end of hose 17 is connected to helicoidal body one end fixed connection, and the other end of helicoidal body and branch pipeline 19 pass through the internal threaded connection of helicoidal body. The sealing gasket may be disposed on one side of the coil body to seal a joint between the coil body and the branch pipe 19, and it should be noted here that the first connecting member in this embodiment further includes other connecting manners, for example, the first connecting member is a hot-melt plastic pipe, one end of the first connecting member is disposed with a thread to be connected with the branch pipe 19, and the other end is connected with the hose 17 in a hot-melt manner, so as to ensure connection airtightness. The hose 17 may be a plastic hose, a rigid hose, etc., and the embodiment is merely an example and is not limited thereto.
In some embodiments, a layered air storage gravity compressed air energy storage system is provided, which comprises a vertical shaft 12, wherein the vertical shaft 12 is dug downwards in the soil layer 7, a gravity assembly is movably inserted into the vertical shaft 12, and the layered air storage device in any embodiment is arranged inside the vertical shaft 12 and below the gravity assembly; in addition, the gravity compressed air energy storage system in the embodiment further comprises an air compression unit, an air expansion unit and a generator; an inlet of the air compression unit is connected with an air inlet device, an outlet of the air compression unit is connected with a main pipeline 18 through an energy storage pipeline, the main pipeline 18 is also connected with an inlet of the air expansion unit through an energy release pipeline, and an outlet of the air expansion unit is connected with a generator; the heat exchange unit is arranged between the energy storage pipeline and the energy release pipeline, the underground part of the main pipeline 18 of the gas storage device in the embodiment shares one steel pipe and is divided into two parts on the ground, and one part is connected with the energy storage pipeline and the energy release pipeline respectively. The exemplary air compression unit can be provided with a plurality of stages of air compressors according to actual needs; the air expansion unit can be provided with a plurality of stages of expanders according to actual needs.
The energy release pipeline is provided with a flow detection device, a pressure detection device and an adjusting valve, and the flow detection device, the pressure detection device and the adjusting valve are respectively connected with a control unit of the gravity compressed air energy storage system to monitor and control key parameters of the system in real time.
The gravity compressed air energy storage system in this embodiment is in operation:
the gravity compressed air energy storage system stores energy in the power grid electricity utilization valley period, the energy release pipeline is closed, the energy storage pipeline is opened, air enters the air compression unit through the air inlet device and is compressed into compressed air, generated heat is stored in the heat exchange unit, the compressed air enters the air storage bag 11 of the air storage chamber 8 through the energy storage pipeline, the volume of the air storage bag 11 is increased, the gravity assembly is lifted by the compressed air at constant pressure, and electric energy is converted into the gravity potential energy of the compressed air energy and the gravity assembly.
During the peak period of power utilization of the power grid, the compressed air energy storage system releases energy, the energy release pipeline is opened, the energy storage pipeline is closed, the gravity assembly descends, the volume of the air storage bag 11 is reduced, compressed air is heated by the heat exchange unit and then enters the air expansion unit through the energy release pipeline to do work at a constant pressure and drive the generator to generate power, and the compressed air energy and the gravitational potential energy of the gravity assembly are converted into electric energy.
The air storage chamber 8 of the gravity compressed air energy storage system in the embodiment comprises a plurality of air storage bags 11 which are sequentially arranged in the vertical direction, wherein only the uppermost air storage bag 11 is directly contacted with the gravity assembly, and the gravity assembly is jacked up by the uppermost air storage bag 11 for a small distance, so that the risk of the inclination of the posture of the gravity assembly is reduced; the lower air storage bag 11 is uniformly stressed in the inflation process and basically has no rupture risk, the inflation process can be rapidly completed, the gravity assembly can be lifted to a higher position, the inflation and deflation of the air storage bag 11 are rapidly realized, and the lifting speed of the gravity assembly is improved.
In some embodiments, the gravity assembly includes a set of gravity blocks and a pressure bearing assembly; wherein the gravity block group is arranged at the top of the pressure bearing assembly; the bottom of the pressure bearing assembly extends into the shaft 12; the top of the pressure bearing assembly is located on the ground at the top of shaft 12; the gravity block group comprises a plurality of gravity pressing blocks 1 which are stacked in the vertical direction layer by layer, and the gravity centers of the gravity pressing blocks 1 are always in the same vertical direction.
Specifically, as shown in fig. 2, the gravity assembly is divided into an aboveground gravity block group and a pressure-bearing assembly, wherein the bottom end of the pressure-bearing assembly extends into the vertical shaft 12, and the gravity block group is located outside the vertical shaft 12, so that when large energy storage is realized, all gravity blocks do not need to be concentrated in the vertical shaft 12, the height of the vertical shaft 12 can be reduced, and the excavation engineering quantity and the engineering difficulty of the vertical shaft 12 are greatly reduced.
In addition, gravity block group includes a plurality of gravity briquetting 1 that set up on the vertical direction layer by layer stack, through setting gravity block group into a plurality of superimposed gravity briquetting 1, and then reduced every gravity briquetting 1's weight, reduce the hoist and mount degree of difficulty when satisfying big energy storage for in the hoist and mount work progress, hoist the pressure-bearing subassembly to the shaft 12 earlier, the pressure-bearing subassembly upper end supports on the ground of shaft 12 week side, then hoist gravity briquetting 1 layer by layer at the top of pressure-bearing subassembly.
In some embodiments, a magnetic member 9 is disposed on each adjacently disposed gravity pressing block 1, so that the adjacently disposed gravity pressing blocks 1 are mutually attracted, and the vertical movement of the gravity pressing blocks 1 is controlled.
Specifically, as shown in fig. 2, a magnetic member 9 is disposed on a surface of the gravity pressing block 1 adjacent to each other in the vertical direction, where the magnetic member 9 in this embodiment is an annular neodymium iron boron magnet, and the annular neodymium iron boron magnet is embedded in the pouring process of the gravity pressing block 1. As shown in fig. 2, in the gravity assembly, the lowermost gravity pressing block 1 is cast at the top, preferably, magnetic members 9 are disposed at multiple positions of the top of the lowermost gravity pressing block 1, wherein the annular neodymium-iron-boron magnet attracts each stacked gravity pressing block 1 to each other, so that the gravity pressing block 1 can be effectively controlled to move in the vertical direction during the movement, the gravity pressing block 1 is prevented from falling off during the movement, and the gravity pressing blocks 1 are always in the same horizontal and vertical directions, and excessive loads on the tower structure 2 and the guiding device 3 are avoided.
In some embodiments, the pressure bearing assembly comprises a pressure bearing cartridge 10 and a pressure bearing base 4; wherein the bottom of the pressure-bearing cylinder 10 extends into the vertical shaft 12, and the top of the pressure-bearing cylinder is provided with a pressure-bearing base 4; the gravity block group is positioned above the pressure bearing base 4, so that the pressure bearing cylinder 10 is supported on the ground at the top of the vertical shaft 12 through the pressure bearing base 4 when moving downwards to the lowest limit position.
Specifically, as shown in fig. 2, the pressure-bearing assembly includes a pressure-bearing cylinder 10 and a pressure-bearing base 4, wherein the bottom end of the pressure-bearing cylinder 10 extends into the vertical shaft 12, the top of the pressure-bearing cylinder 10 is located on the ground at the top of the vertical shaft 12 and is connected with the pressure-bearing base 4, a plurality of gravity pressing blocks 1 stacked layer upon layer in the vertical direction are arranged above the pressure-bearing base 4, and the gravity centers of the gravity pressing blocks 1 are always in the same vertical direction.
In some embodiments, the energy storage system comprises a guide means 3 comprising a guide channel and a roller; the guide grooves are distributed on the periphery of the gravity component and are arranged on the inner wall of the vertical shaft 12 or the outer part of the vertical shaft 12; the roller is matched with the guide groove and is connected with the groove bottom of the guide groove, so that the roller moves up and down along the groove bottom of the guide groove when the gravity assembly moves up and down.
The guide groove is distributed on the periphery of the gravity assembly, and is arranged on the inner wall of the shaft 12 or outside the shaft 12, that is, the guide groove can be arranged inside the shaft 12 or outside the shaft 12. The gyro wheel sets up a plurality ofly, and a plurality of gyro wheels are installed in the week side of gravity subassembly through the pivot respectively, and the gyro wheel meets with the tank bottom of guide slot to the gyro wheel reciprocates along the tank bottom of guide slot when making gravity subassembly reciprocate.
It can be understood that, when the gravity assembly is located in the shaft 12 and moves in the energy storage process, a plurality of guide grooves can be arranged on the periphery of the inner wall of the shaft 12, for example, four guide grooves can be arranged, 4 guide grooves can be arranged on the inner wall of the shaft 12 at equal angles, and because the roller on the gravity assembly is arranged on the periphery of the gravity assembly through the rotating shaft, the roller can rotate on the gravity assembly.
In addition, it is also possible that the ground outside the top end of the shaft 12 is provided with a plurality of tower structures 2, the plurality of tower structures 2 are distributed around the shaft 12, the plurality of guide grooves are respectively installed on the plurality of tower structures 2, that is, 4 tower structures 2 can be provided, and then the 4 guide grooves are arranged on the 4 tower structures 2 outside the shaft 12, and in the energy storage process, a part of the gravity assembly is located outside the shaft 12 and a part of the gravity assembly is located inside the shaft 12.
In some embodiments, the plurality of gravity compacts 1 are each provided with a guide device 3 on the circumferential side, and the guide devices 3 are installed on the circumferential side of the gravity compacts 1 and between the gravity compacts 1 and the tower structure 2 opposite to the gravity compacts 1. Wherein, a gap is reserved between the outer side wall of the gravity press block 1 and the inner side wall of the tower, and a plurality of rollers are respectively arranged on the peripheral side of the gravity block group and the peripheral side of the outer wall of the top end of the pressure-bearing cylinder 10, so that the overground gravity block group and the pressure-bearing cylinder 10 can move up and down along the guide grooves through the rollers in the up-and-down moving process.
Specifically, every gravity briquetting 1's week side all opens there is the mounting groove, installs the steel sheet groove in the mounting groove, and the gyro wheel is arranged in the steel sheet groove, and the pivot of connecting on the gyro wheel is installed between the lateral wall of the relative both sides in steel sheet groove, and here is no longer repeated for common structure setting.
In some embodiments, a steel lining 13 is arranged on the inner wall of the shaft 12, the steel lining 13 can ensure that the inner wall of the shaft 12 is smooth, and the air storage chamber 8 is arranged on the inner side of the steel lining 13.
In addition, it should be noted that the pressure-containing cylinder 10 is filled with sand.
It can be understood that the pressure-bearing cylinder 10 can be a cylindrical structure surrounded by steel plates, the interior of the pressure-bearing cylinder is of a hollow structure, the reduced weight is convenient to hoist, and in addition, sand is filled in the pressure-bearing cylinder 10, so that the gravity of energy storage can be increased.
The following describes in detail the air storage and energy storage method of the gravity compressed air energy storage system of this embodiment:
when energy is stored, the energy storage pipeline is opened, air enters the air compression unit through the air inlet device and is compressed into compressed air, the generated heat is stored in the heat exchange unit, the compressed air enters the main pipeline 18 of the air storage chamber 8 through the energy storage pipeline and then enters the corresponding air storage bag 11 through the branch pipeline 19, the volume of the air storage bag 11 is increased, the gravity assembly is lifted by the compressed air at constant pressure, and electric energy is converted into compressed air energy and gravitational potential energy of the gravity assembly; the pressure introduced into the gas storage bag 11 is sequentially increased from top to bottom, the pressure difference of each stage of gas storage bag 11 is effectively reduced, the stress of the sealing material of the gas storage bag 11 can be effectively dispersed, the tensile strength limit of the sealing material is reduced to 1/3 of the original requirement, the using amount of the internal reinforcing fibers is greatly reduced, and therefore the cost of the sealing material is reduced.
When releasing energy, the compressed air in the gas storage bags 11 enters the air expansion unit to do work at a constant pressure and drive the generator to generate electricity, the gravity pressing block 1 moves downwards to the lowest limit position and then stops moving, and when releasing energy, the plurality of gas storage bags 11 simultaneously discharge the compressed air, so that the gas discharge can be quickly realized.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A layered gas storage device, comprising:
an air storage chamber; a plurality of air storage bags are sequentially arranged in the air storage chamber in the vertical direction; supporting components are arranged between every two adjacent air storage bags; the supporting component is used for separating the air storage bags and supporting the air storage bags arranged on the upper layer;
a guide wheel device; the air storage chamber is arranged on the inner wall of the air storage chamber and is positioned on the peripheral side of the support component; the guide wheel device comprises a guide rail and a guide wheel; so that the guide wheel moves up and down along the guide rail when the support component moves up and down;
an air intake and exhaust assembly; the air storage bag comprises a coil pipe fitting arranged in the air storage chamber, a hose and an auxiliary pipeline valve assembly, wherein the coil pipe fitting is wound by a plurality of circles, and the output end of the hose is communicated with the air storage bag; so that air is introduced into and discharged from the air reservoir through the hose.
2. The gas storage device according to claim 1, wherein the support assembly includes a support plate and a baffle disposed on the support plate and around the support plate; the air storage bag is positioned in an accommodating space enclosed by the support plate and the baffle; the guide wheel is arranged on the outer wall of the baffle and is in sliding connection with the guide rail arranged on the inner wall of the air storage chamber.
3. The gas storage device of claim 2, further comprising a protective member; the protector comprises a plurality of cushions; the cushion pads are respectively arranged above the supporting plate and on the inner side of the baffle plate so as to protect the air storage bag in an inflated state.
4. The gas storage apparatus according to claim 2, wherein the sub pipe valve assembly includes a main pipe and a plurality of branch pipes communicating with the main pipe; the branch pipes correspond to the air storage bags respectively and are connected with the hoses on the air storage bags.
5. The gas storage device according to claim 4, wherein the branch conduit is connected to the hose by a first connection member; the first connecting piece is arranged on the inner wall of the air storage chamber and comprises a spiral ring body and a sealing washer arranged on one side of the spiral ring body; one end of the coil body is fixedly arranged on the hose, and the other end of the coil body is in threaded connection with the branch pipeline; the sealing washer is used for sealing the joint of the spiral ring body and the branch pipeline.
6. A layered air storage type gravity compressed air energy storage system is characterized by comprising
The gas storage device comprises a vertical shaft, wherein a gravity component is movably inserted into the vertical shaft, a gap is formed between the outer wall of the gravity component and the inner wall of the vertical shaft, the bottom of the gravity component is provided with the gas storage device as claimed in any one of claims 1 to 5, and the gas storage chamber is positioned on the inner side of the vertical shaft.
7. The energy storage system of claim 6, wherein the gravity assembly comprises a gravity block set and a pressure bearing assembly; the gravity block group is arranged at the top of the pressure bearing assembly; the bottom of the pressure-bearing assembly extends into the shaft, and the outer wall of the pressure-bearing assembly is connected with the sealing film; the top of the pressure bearing assembly is positioned on the ground at the top of the vertical shaft; the gravity block group comprises a plurality of gravity pressing blocks which are stacked layer by layer in the vertical direction, and the gravity centers of the gravity pressing blocks are kept in the same vertical direction.
8. The energy storage system of claim 7, wherein the bearing assembly comprises a bearing cylinder and a bearing base; the bottom of the pressure bearing cylinder extends into the shaft, and the top of the pressure bearing cylinder is provided with a pressure bearing base; the gravity block group is positioned above the pressure-bearing base, so that the pressure-bearing cylinder is supported on the ground at the top of the vertical shaft through the pressure-bearing base when moving downwards to the lowest limit position.
9. The energy storage system of claim 6, wherein the energy storage system comprises a guide device comprising a guide slot and a roller; the guide grooves are distributed on the periphery of the gravity assembly and are arranged on the inner wall of the vertical shaft or the outer part of the vertical shaft; the roller is matched with the guide groove and is connected with the groove bottom of the guide groove, so that the roller moves up and down along the groove bottom of the guide groove when the gravity assembly moves up and down.
10. The energy storage system of claim 9, wherein the ground outside the top end of the shaft is provided with a plurality of tower structures distributed around the circumference of the shaft; the guide grooves are respectively arranged on the tower structures.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3355271A (en) * | 1963-08-16 | 1967-11-28 | Kins Developments Ltd | Gas holder |
| RU2027895C1 (en) * | 1992-10-12 | 1995-01-27 | Павел Гаврилович Турленко | Pneumogravitational power plant |
| KR20070021661A (en) * | 2005-08-19 | 2007-02-23 | 최상배 | Apparatus and method for generating rotating force using tidal energy |
| CN2921543Y (en) * | 2006-07-04 | 2007-07-11 | 李伟 | 10-20 Kpa rubber film sealing gas storing cabinet |
| CN201706193U (en) * | 2010-04-08 | 2011-01-12 | 许建波 | Double-layered flexible gas storage equipment protecting device |
| US20120019008A1 (en) * | 2010-07-26 | 2012-01-26 | Charles E. Hughey | Hybrid vertical energy storage system |
| CN103629520A (en) * | 2013-12-20 | 2014-03-12 | 中冶赛迪工程技术股份有限公司 | Sliding type H-type piston coal gas tank and sliding type H-type piston thereof |
| CN105508865A (en) * | 2015-11-27 | 2016-04-20 | 中冶南方工程技术有限公司 | Single-section rubber membrane sealing dry-type coal gas cabinet with telescopic piston bracket |
| CN105683643A (en) * | 2013-07-29 | 2016-06-15 | 康姆顿合伙制公司 | Fuel tank |
| WO2016103726A1 (en) * | 2014-12-26 | 2016-06-30 | ダイキン工業株式会社 | Heat-storage-type air conditioner |
| CN110726067A (en) * | 2019-08-29 | 2020-01-24 | 中国科学院工程热物理研究所 | System for compressed air energy storage by utilizing double-layer air storage tank |
| CN111271592A (en) * | 2020-03-23 | 2020-06-12 | 清华大学 | Gas storage device |
-
2022
- 2022-07-07 CN CN202210795444.3A patent/CN115218113B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3355271A (en) * | 1963-08-16 | 1967-11-28 | Kins Developments Ltd | Gas holder |
| RU2027895C1 (en) * | 1992-10-12 | 1995-01-27 | Павел Гаврилович Турленко | Pneumogravitational power plant |
| KR20070021661A (en) * | 2005-08-19 | 2007-02-23 | 최상배 | Apparatus and method for generating rotating force using tidal energy |
| CN2921543Y (en) * | 2006-07-04 | 2007-07-11 | 李伟 | 10-20 Kpa rubber film sealing gas storing cabinet |
| CN201706193U (en) * | 2010-04-08 | 2011-01-12 | 许建波 | Double-layered flexible gas storage equipment protecting device |
| US20120019008A1 (en) * | 2010-07-26 | 2012-01-26 | Charles E. Hughey | Hybrid vertical energy storage system |
| CN105683643A (en) * | 2013-07-29 | 2016-06-15 | 康姆顿合伙制公司 | Fuel tank |
| CN103629520A (en) * | 2013-12-20 | 2014-03-12 | 中冶赛迪工程技术股份有限公司 | Sliding type H-type piston coal gas tank and sliding type H-type piston thereof |
| WO2016103726A1 (en) * | 2014-12-26 | 2016-06-30 | ダイキン工業株式会社 | Heat-storage-type air conditioner |
| CN105508865A (en) * | 2015-11-27 | 2016-04-20 | 中冶南方工程技术有限公司 | Single-section rubber membrane sealing dry-type coal gas cabinet with telescopic piston bracket |
| CN110726067A (en) * | 2019-08-29 | 2020-01-24 | 中国科学院工程热物理研究所 | System for compressed air energy storage by utilizing double-layer air storage tank |
| CN111271592A (en) * | 2020-03-23 | 2020-06-12 | 清华大学 | Gas storage device |
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| CN115218113B (en) | 2024-04-02 |
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